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Microstructure and mechanical properties of deposited metal filled by nuclear grade Ⅰ E2209-15 duplex stainless steel electrode
Pages: 60-64+2
Year: Issue:  10
Journal: Welding Technology

Keyword:  nuclear grade Ⅰ E2209-15 electrode2205 duplex stainless steelshielded metal arc weldingchemical compositionmechanical properties of deposited metal;
Abstract: It was introduced nuclear grade Ⅰ E2209-15 duplex stainless steel electrode in this paper. The shielded metal arc welding was carried out, and the chemical compositions, impact toughness, the hardness, the tensile strength and microstrcture of the deposited metal were tested and determined. The results revealed that the strength of the deposited metal was the very high, and toughness at low temperature was excellent. The chemical composition was measured, and the content of S, P and impurity element was controlled well. The ferritic content of deposited metal was measured by ferritic measuring instrument. The ferritic content was about 46.38%. The microstructure of deposited metal was typical dendritic and striped growth. The microstructure was compact, and grain was tiny.Futhermore the microstructure was distributed like thin strip evenly, and impact resistance was outstanding.
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